LightWave Saber Bass VL 5-String Fretless, Transparent Amber Patented and exclusive LightWave Optical Pickup System uses infrared light to sense string vibration Extended bass response, wide dynamic range, long and natural sustain, extremely low noise Chambered Swamp Ash body with AAA Flame Maple Top 34-Inch scale rock maple neck with custom composite basswood fingerboard Powered by a rechargeable NiMH battery pack with rapid charge system